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Calorie to Kilojoule

Convert measurements between Calorie and Kilojoule.

Common conversions

10cal = 0.0418 kJ
50cal = 0.2092 kJ
100cal = 0.4184 kJ
240cal = 1.0042 kJ
320cal = 1.3389 kJ
550cal = 2.3012 kJ

Conversion information

1 Calorie = 0.004184 Kilojoule

Energy needed to raise 1 g of water by 1°C.
One thousand joules, used in nutrition and science.

Frequently Asked Questions

What is a calorie?
It is the energy needed to raise the temperature of one gram of water by 1°C.
Where is the calorie used?
In nutrition and science to measure thermal energy.
How many joules are in a kilojoule?
One kilojoule equals 1,000 joules.
Where is the kilojoule used?
It is often used in nutrition to express the energy value of foods.